Countries That Use Imperial 2019

The imperial system is a set of standards used for weights and measures. These were first outlined through the British Weights and Measures Act of 1824. Prior to using the imperial system, Winchester Standards were used beginning in the 16th century.

The imperial system is used for measurements including area, mass and volume. For length, units of measurement in the imperial system includes inches, feet, links, yards, poles, miles and leagues, just to name a few.

When measuring area, imperial units include square feet, perches, roods and acres. For volume, common measurement units include ounces, gills, pints, quarts and gallons. For mass, common units include grains, ounces, pounds, and tons.

On the flip side, there is also the metric system. The metric system uses base units such as meter (for length), liter (for volumes/liquids), and grams (for mass). A prefix is added to the base unit to indicate the exact measurement based on a decimal system, i.e. kilogram or millimeter.

If you live in the United States, you may think that the imperial system is the most commonly used throughout the world? In reality, this is incorrect. Not only is the metric system the most used system in the world, but just three countries in the world still use the imperial system of measurements.

In addition to the United States, Myanmar and Liberia are the only countries worldwide that use these standards of measurements. Other countries around the world use the metric system.

Rank Flag Name Population 2019 Area Area (mi²) % of Earth's Area Growth Rate Region Subregion
1United States329,064,9179,372,610 km²3,617,827 mi²6.31%0.60%AmericasNorthern America
2Myanmar54,045,420676,578 km²261,159 mi²0.46%0.63%AsiaSouth-Eastern Asia
3Liberia4,937,374111,369 km²42,988 mi²< 0.1%2.46%AfricaWestern Africa